/Engine/Source/Runtime/Datasmith/DirectLink/Public/DirectLinkEndpoint.h
Add a Source to that endpoint. A source can hold content (a scene snapshot) and is able to stream that content to remote destinations.
A Handle required by other Source related methods
[FSourceHandle](API\Runtime\DirectLink\FSourceHandle) AddSource ( const [FString](API\Runtime\Core\Containers\FString) & Name, [EVisibility](API\Runtime\DirectLink\DirectLink__EVisibility) Visibility )